<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card>
      <!-- 搜索与添加商品区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="getGoodsListQuery.query"
            clearable
            @change="getGoodsList"
            @clear="getGoodsList"
          >
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 商品列表区域 -->
      <el-table :data="goodsList.goods" style="width: 100%" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="goods_name" label="商品名称"></el-table-column>
        <el-table-column prop="goods_price" label="商品价格(元)" width="95px"></el-table-column>
        <el-table-column prop="goods_weight" label="商品重量" width="70px"></el-table-column>
        <el-table-column prop="add_time" label="创建时间" width="140px">
          <template slot-scope="scope">{{scope.row.add_time |dateFormat }}</template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              @click="deleteGoodsById(scope.row.goods_id)"
              icon="el-icon-delete"
              size="mini"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="getGoodsListQuery.pagenum"
        :page-sizes="[5, 10, 20, 30]"
        :page-size="getGoodsListQuery.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="goodsList.total"
        background
      ></el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      getGoodsListQuery: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      goodsList: {}
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.getGoodsListQuery
      })
      // false
      if (res.meta.status !== 200) {
        this.$message({
          message: res.meta.msg,
          type: 'warning',
          duration: 500
        })
        return false
      }
      // suc
      this.goodsList = res.data
      // console.log(res.data)
    },
    // 每页显示多少条 被触发
    handleSizeChange(val) {
      this.getGoodsListQuery.pagesize = val
      this.getGoodsList()
      // console.log(`每页 ${val} 条`)
    },
    // 当前选多少页 被触发
    handleCurrentChange(val) {
      this.getGoodsListQuery.pagenum = val
      this.getGoodsList()
      // console.log(`当前页: ${val}`)
    },
    // 通过id删除商品列表
    deleteGoodsById(id) {
      this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      })
        .then(async () => {
          const { data: res } = await this.$http.delete('goods/' + id)
          // false
          if (res.meta.status !== 200) {
            this.$message({
              message: res.meta.msg,
              type: 'warning',
              duration: 1000
            })
            return false
          }
          // suc
          this.getGoodsList()
          this.$message({
            type: 'success',
            message: res.meta.msg,
            duration: 1000
          })
        })
        .catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          })
        })
    },
    // 点击添加商品 路由跳转
    goAddPage() {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang="less" scoped>
</style>
